How many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution

What happens when the sun beats up the earth

What is the molarity of a solution made by dissolving 50.0 g of HBr in enough water to make 600. mL of solution?

Is humidity high after a snowstorm

What is a chemical symbol

Which of the following is an example of a neutralization reaction? HCl (aq) + NaOH (aq) - - > H2O (l) + NaCl (aq) Mg (s) + 2H2O (l) - - > Mg (OH) 2 (aq) + H2 (g) H2CO3 (aq) - - > H2O (l) + CO2 (g) Pb (NO3) 2 (s) + 2NaI (aq) - - > PbI2 (s) + 2NaNO3

A large boulder falls from an underwater ledge and crashes on the floor of the ocean. A pod of dolphins is 800 meters away. Determine how long it takes for the sound of the crash to reach the dolphins. A) 0.5 sec B) 0.3 sec C) 2.3 sec D) 1.9 sec

Given 4.80g of ammonium carbonate, find: Number of moles of the compound Number of moles of ammonium ions Number of moles of carbonate ions Number of moles of hydrogen atoms Number of hydrogen atoms

The density of water is 1.0 g/cm3 will rubbing alcohol float with a density of 0.81 g/cm3

Write an equation that shows the formation of the phosphide ion from a neutral phosphorus atom.

Which of the following terms is defined by the measure of mass per unit of volume? gravity density weight acceleration